Question

Express the given information in mathematical form using two variables:

One number is 5 more than seven times the other number.

• A. $x+5y=7$
• B. $7x-y=8$
• C. $x-7y=5$
• D. Insufficient data

Answer 1

The correct option is C $x-7y=5$

Let the two numbers be ${}^{\prime }{x}^{\prime }$ and ${}^{\prime }{y}^{\prime }$.

Now, according to question

$x=5+(7\times y)$

$\Rightarrow x-7y=5$, which is a required expression.